--- /dev/null
+From 953d85d97f59691dccbbca743c478a8b01f92b59 Mon Sep 17 00:00:00 2001
+From: Dave Stevenson <dave.stevenson@raspberrypi.org>
+Date: Wed, 27 Mar 2019 17:45:01 +0000
+Subject: [PATCH] drm: vc4: Add an overlay plane to vc4-firmware-kms
+
+This uses a new API that is exposed via the mailbox service
+to stick an element straight on the screen using DispmanX.
+
+The primary and cursor planes have also been switched to using
+the new plane API, and it supports layering based on the DRM
+zpos parameter.
+
+Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
+---
+ drivers/gpu/drm/vc4/vc4_firmware_kms.c | 518 ++++++++++++++-------
+ drivers/gpu/drm/vc4/vc4_kms.c | 1 +
+ drivers/gpu/drm/vc4/vc_image_types.h | 143 ++++++
+ include/soc/bcm2835/raspberrypi-firmware.h | 2 +
+ 4 files changed, 495 insertions(+), 169 deletions(-)
+ create mode 100644 drivers/gpu/drm/vc4/vc_image_types.h
+
+--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
+@@ -26,8 +26,46 @@
+ #include "linux/of_device.h"
+ #include "vc4_drv.h"
+ #include "vc4_regs.h"
++#include "vc_image_types.h"
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+
++struct set_plane {
++ u8 display;
++ u8 plane_id;
++ u8 vc_image_type;
++ s8 layer;
++
++ u16 width;
++ u16 height;
++
++ u16 pitch;
++ u16 vpitch;
++
++ u32 src_x; /* 16p16 */
++ u32 src_y; /* 16p16 */
++
++ u32 src_w; /* 16p16 */
++ u32 src_h; /* 16p16 */
++
++ s16 dst_x;
++ s16 dst_y;
++
++ u16 dst_w;
++ u16 dst_h;
++
++ u8 alpha;
++ u8 num_planes;
++ u8 is_vu;
++ u8 padding;
++
++ u32 planes[4]; /* DMA address of each plane */
++};
++
++struct mailbox_set_plane {
++ struct rpi_firmware_property_tag_header tag;
++ struct set_plane plane;
++};
++
+ struct fb_alloc_tags {
+ struct rpi_firmware_property_tag_header tag1;
+ u32 xres, yres;
+@@ -47,6 +85,79 @@ struct fb_alloc_tags {
+ u32 layer;
+ };
+
++static const struct vc_image_format {
++ u32 drm; /* DRM_FORMAT_* */
++ u32 vc_image; /* VC_IMAGE_* */
++ u32 is_vu;
++} vc_image_formats[] = {
++ {
++ .drm = DRM_FORMAT_XRGB8888,
++ .vc_image = VC_IMAGE_XRGB8888,
++ },
++ {
++ .drm = DRM_FORMAT_ARGB8888,
++ .vc_image = VC_IMAGE_ARGB8888,
++ },
++/*
++ * FIXME: Need to resolve which DRM format goes to which vc_image format
++ * for the remaining RGBA and RGBX formats.
++ * {
++ * .drm = DRM_FORMAT_ABGR8888,
++ * .vc_image = VC_IMAGE_RGBA8888,
++ * },
++ * {
++ * .drm = DRM_FORMAT_XBGR8888,
++ * .vc_image = VC_IMAGE_RGBA8888,
++ * },
++ */
++ {
++ .drm = DRM_FORMAT_RGB565,
++ .vc_image = VC_IMAGE_RGB565,
++ },
++ {
++ .drm = DRM_FORMAT_RGB888,
++ .vc_image = VC_IMAGE_BGR888,
++ },
++ {
++ .drm = DRM_FORMAT_BGR888,
++ .vc_image = VC_IMAGE_RGB888,
++ },
++ {
++ .drm = DRM_FORMAT_YUV422,
++ .vc_image = VC_IMAGE_YUV422PLANAR,
++ },
++ {
++ .drm = DRM_FORMAT_YUV420,
++ .vc_image = VC_IMAGE_YUV420,
++ },
++ {
++ .drm = DRM_FORMAT_YVU420,
++ .vc_image = VC_IMAGE_YUV420,
++ .is_vu = 1,
++ },
++ {
++ .drm = DRM_FORMAT_NV12,
++ .vc_image = VC_IMAGE_YUV420SP,
++ },
++ {
++ .drm = DRM_FORMAT_NV21,
++ .vc_image = VC_IMAGE_YUV420SP,
++ .is_vu = 1,
++ },
++};
++
++static const struct vc_image_format *vc4_get_vc_image_fmt(u32 drm_format)
++{
++ unsigned int i;
++
++ for (i = 0; i < ARRAY_SIZE(vc_image_formats); i++) {
++ if (vc_image_formats[i].drm == drm_format)
++ return &vc_image_formats[i];
++ }
++
++ return NULL;
++}
++
+ /* The firmware delivers a vblank interrupt to us through the SMI
+ * hardware, which has only this one register.
+ */
+@@ -113,6 +224,7 @@ struct vc4_fkms_plane {
+ struct fbinfo_s *fbinfo;
+ dma_addr_t fbinfo_bus_addr;
+ u32 pitch;
++ struct mailbox_set_plane mb;
+ };
+
+ static inline struct vc4_fkms_plane *to_vc4_fkms_plane(struct drm_plane *plane)
+@@ -120,165 +232,183 @@ static inline struct vc4_fkms_plane *to_
+ return (struct vc4_fkms_plane *)plane;
+ }
+
+-/* Turns the display on/off. */
+-static int vc4_plane_set_primary_blank(struct drm_plane *plane, bool blank)
++static int vc4_plane_set_blank(struct drm_plane *plane, bool blank)
+ {
+ struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
++ struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
++ struct mailbox_set_plane blank_mb = {
++ .tag = { RPI_FIRMWARE_SET_PLANE, sizeof(struct set_plane), 0 },
++ .plane = {
++ .display = vc4_plane->mb.plane.display,
++ .plane_id = vc4_plane->mb.plane.plane_id,
++ }
++ };
++ int ret;
+
+- u32 packet = blank;
+-
+- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary plane %s",
++ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] overlay plane %s",
+ plane->base.id, plane->name,
+ blank ? "blank" : "unblank");
+
+- return rpi_firmware_property(vc4->firmware,
+- RPI_FIRMWARE_FRAMEBUFFER_BLANK,
+- &packet, sizeof(packet));
++ if (blank)
++ ret = rpi_firmware_property_list(vc4->firmware, &blank_mb,
++ sizeof(blank_mb));
++ else
++ ret = rpi_firmware_property_list(vc4->firmware, &vc4_plane->mb,
++ sizeof(vc4_plane->mb));
++
++ WARN_ONCE(ret, "%s: firmware call failed. Please update your firmware",
++ __func__);
++ return ret;
+ }
+
+-static void vc4_primary_plane_atomic_update(struct drm_plane *plane,
+- struct drm_plane_state *old_state)
++static void vc4_plane_atomic_update(struct drm_plane *plane,
++ struct drm_plane_state *old_state)
+ {
+- struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
+ struct drm_plane_state *state = plane->state;
+ struct drm_framebuffer *fb = state->fb;
+ struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
+- u32 format = fb->format->format;
+- struct fb_alloc_tags fbinfo = {
+- .tag1 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PHYSICAL_WIDTH_HEIGHT,
+- 8, 0, },
+- .xres = state->crtc_w,
+- .yres = state->crtc_h,
+- .tag2 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_WIDTH_HEIGHT,
+- 8, 0, },
+- .xres_virtual = state->crtc_w,
+- .yres_virtual = state->crtc_h,
+- .tag3 = { RPI_FIRMWARE_FRAMEBUFFER_SET_DEPTH, 4, 0 },
+- .bpp = 32,
+- .tag4 = { RPI_FIRMWARE_FRAMEBUFFER_SET_VIRTUAL_OFFSET, 8, 0 },
+- .xoffset = 0,
+- .yoffset = 0,
+- .tag5 = { RPI_FIRMWARE_FRAMEBUFFER_ALLOCATE, 8, 0 },
+- .base = bo->paddr + fb->offsets[0],
+- .screen_size = state->crtc_w * state->crtc_h * 4,
+- .tag6 = { RPI_FIRMWARE_FRAMEBUFFER_SET_PITCH, 4, 0 },
+- .pitch = fb->pitches[0],
+- .tag7 = { RPI_FIRMWARE_FRAMEBUFFER_SET_ALPHA_MODE, 4, 0 },
+- .alpha_mode = format == DRM_FORMAT_ARGB8888 ? 0 : 2,
+- .tag8 = { RPI_FIRMWARE_FRAMEBUFFER_SET_LAYER, 4, 0 },
+- .layer = -127,
+- };
+- u32 bpp = 32;
+- int ret;
++ const struct drm_format_info *drm_fmt = fb->format;
++ const struct vc_image_format *vc_fmt =
++ vc4_get_vc_image_fmt(drm_fmt->format);
++ struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
++ struct mailbox_set_plane *mb = &vc4_plane->mb;
++ struct vc4_crtc *vc4_crtc = to_vc4_crtc(state->crtc);
++ int num_planes = fb->format->num_planes;
++ struct drm_display_mode *mode = &state->crtc->mode;
+
+- if (fb->modifier == DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED)
+- fbinfo.bpp |= BIT(31);
++ mb->plane.vc_image_type = vc_fmt->vc_image;
++ mb->plane.width = fb->width;
++ mb->plane.height = fb->height;
++ mb->plane.pitch = fb->pitches[0];
++ mb->plane.src_w = state->src_w;
++ mb->plane.src_h = state->src_h;
++ mb->plane.src_x = state->src_x;
++ mb->plane.src_y = state->src_y;
++ mb->plane.dst_w = state->crtc_w;
++ mb->plane.dst_h = state->crtc_h;
++ mb->plane.dst_x = state->crtc_x;
++ mb->plane.dst_y = state->crtc_y;
++ mb->plane.alpha = state->alpha >> 8;
++ mb->plane.layer = state->normalized_zpos ?
++ state->normalized_zpos : -127;
++ mb->plane.num_planes = num_planes;
++ mb->plane.is_vu = vc_fmt->is_vu;
++ mb->plane.planes[0] = bo->paddr + fb->offsets[0];
+
+- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] primary update %dx%d@%d +%d,%d 0x%pad/%d\n",
++ /* FIXME: If the dest rect goes off screen then clip the src rect so we
++ * don't have off-screen pixels.
++ */
++ if (plane->type == DRM_PLANE_TYPE_CURSOR) {
++ /* There is no scaling on the cursor plane, therefore the calcs
++ * to alter the source crop as the cursor goes off the screen
++ * are simple.
++ */
++ if (mb->plane.dst_x + mb->plane.dst_w > mode->hdisplay) {
++ mb->plane.dst_w = mode->hdisplay - mb->plane.dst_x;
++ mb->plane.src_w = (mode->hdisplay - mb->plane.dst_x)
++ << 16;
++ }
++ if (mb->plane.dst_y + mb->plane.dst_h > mode->vdisplay) {
++ mb->plane.dst_h = mode->vdisplay - mb->plane.dst_y;
++ mb->plane.src_h = (mode->vdisplay - mb->plane.dst_y)
++ << 16;
++ }
++ }
++
++ if (num_planes > 1) {
++ /* Assume this must be YUV */
++ /* Makes assumptions on the stride for the chroma planes as we
++ * can't easily plumb in non-standard pitches.
++ */
++ mb->plane.planes[1] = bo->paddr + fb->offsets[1];
++ if (num_planes > 2)
++ mb->plane.planes[2] = bo->paddr + fb->offsets[2];
++ else
++ mb->plane.planes[2] = 0;
++
++ /* Special case the YUV420 with U and V as line interleaved
++ * planes as we have special handling for that case.
++ */
++ if (num_planes == 3 &&
++ (fb->offsets[2] - fb->offsets[1]) == fb->pitches[1])
++ mb->plane.vc_image_type = VC_IMAGE_YUV420_S;
++ } else {
++ mb->plane.planes[1] = 0;
++ mb->plane.planes[2] = 0;
++ }
++ mb->plane.planes[3] = 0;
++
++ switch (fb->modifier) {
++ case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
++ switch (mb->plane.vc_image_type) {
++ case VC_IMAGE_RGBX32:
++ mb->plane.vc_image_type = VC_IMAGE_TF_RGBX32;
++ break;
++ case VC_IMAGE_RGBA32:
++ mb->plane.vc_image_type = VC_IMAGE_TF_RGBA32;
++ break;
++ case VC_IMAGE_RGB565:
++ mb->plane.vc_image_type = VC_IMAGE_TF_RGB565;
++ break;
++ }
++ break;
++ case DRM_FORMAT_MOD_BROADCOM_SAND128:
++ mb->plane.vc_image_type = VC_IMAGE_YUV_UV;
++ mb->plane.pitch = fourcc_mod_broadcom_param(fb->modifier);
++ break;
++ }
++
++ if (vc4_crtc) {
++ mb->plane.dst_x += vc4_crtc->overscan[0];
++ mb->plane.dst_y += vc4_crtc->overscan[1];
++ }
++
++ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane update %dx%d@%d +dst(%d,%d, %d,%d) +src(%d,%d, %d,%d) 0x%08x/%08x/%08x/%d, alpha %u zpos %u\n",
+ plane->base.id, plane->name,
+- state->crtc_w,
+- state->crtc_h,
+- bpp,
++ mb->plane.width,
++ mb->plane.height,
++ mb->plane.vc_image_type,
+ state->crtc_x,
+ state->crtc_y,
+- &fbinfo.base,
+- fb->pitches[0]);
+-
+- ret = rpi_firmware_property_list(vc4->firmware, &fbinfo,
+- sizeof(fbinfo));
+- WARN_ON_ONCE(fbinfo.pitch != fb->pitches[0]);
+- WARN_ON_ONCE(fbinfo.base != bo->paddr + fb->offsets[0]);
+-
+- /* If the CRTC is on (or going to be on) and we're enabled,
++ state->crtc_w,
++ state->crtc_h,
++ mb->plane.src_x,
++ mb->plane.src_y,
++ mb->plane.src_w,
++ mb->plane.src_h,
++ mb->plane.planes[0],
++ mb->plane.planes[1],
++ mb->plane.planes[2],
++ fb->pitches[0],
++ state->alpha,
++ state->normalized_zpos);
++
++ /*
++ * Do NOT set now, as we haven't checked if the crtc is active or not.
++ * Set from vc4_plane_set_blank instead.
++ *
++ * If the CRTC is on (or going to be on) and we're enabled,
+ * then unblank. Otherwise, stay blank until CRTC enable.
+- */
++ */
+ if (state->crtc->state->active)
+- vc4_plane_set_primary_blank(plane, false);
++ vc4_plane_set_blank(plane, false);
+ }
+
+-static void vc4_primary_plane_atomic_disable(struct drm_plane *plane,
+- struct drm_plane_state *old_state)
++static void vc4_plane_atomic_disable(struct drm_plane *plane,
++ struct drm_plane_state *old_state)
+ {
+- vc4_plane_set_primary_blank(plane, true);
+-}
+-
+-static void vc4_cursor_plane_atomic_update(struct drm_plane *plane,
+- struct drm_plane_state *old_state)
+-{
+- struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
++ //struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
+ struct drm_plane_state *state = plane->state;
+- struct vc4_crtc *vc4_crtc = to_vc4_crtc(state->crtc);
+- struct drm_framebuffer *fb = state->fb;
+- struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0);
+- dma_addr_t addr = bo->paddr + fb->offsets[0];
+- int ret;
+- u32 packet_state[] = {
+- state->crtc->state->active,
+- state->crtc_x,
+- state->crtc_y,
+- 0
+- };
+- WARN_ON_ONCE(fb->pitches[0] != state->crtc_w * 4);
++ struct vc4_fkms_plane *vc4_plane = to_vc4_fkms_plane(plane);
+
+- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] update %dx%d cursor at %d,%d (0x%pad/%d)",
++ DRM_DEBUG_ATOMIC("[PLANE:%d:%s] plane disable %dx%d@%d +%d,%d\n",
+ plane->base.id, plane->name,
+ state->crtc_w,
+ state->crtc_h,
++ vc4_plane->mb.plane.vc_image_type,
+ state->crtc_x,
+- state->crtc_y,
+- &addr,
+- fb->pitches[0]);
+-
+- /* add on the top/left offsets when overscan is active */
+- if (vc4_crtc) {
+- packet_state[1] += vc4_crtc->overscan[0];
+- packet_state[2] += vc4_crtc->overscan[1];
+- }
+-
+- ret = rpi_firmware_property(vc4->firmware,
+- RPI_FIRMWARE_SET_CURSOR_STATE,
+- &packet_state,
+- sizeof(packet_state));
+- if (ret || packet_state[0] != 0)
+- DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]);
+-
+- /* Note: When the cursor contents change, the modesetting
+- * driver calls drm_mode_cursor_univeral() with
+- * DRM_MODE_CURSOR_BO, which means a new fb will be allocated.
+- */
+- if (!old_state ||
+- state->crtc_w != old_state->crtc_w ||
+- state->crtc_h != old_state->crtc_h ||
+- fb != old_state->fb) {
+- u32 packet_info[] = { state->crtc_w, state->crtc_h,
+- 0, /* unused */
+- addr,
+- 0, 0, /* hotx, hoty */};
+-
+- ret = rpi_firmware_property(vc4->firmware,
+- RPI_FIRMWARE_SET_CURSOR_INFO,
+- &packet_info,
+- sizeof(packet_info));
+- if (ret || packet_info[0] != 0)
+- DRM_ERROR("Failed to set cursor info: 0x%08x\n", packet_info[0]);
+- }
+-}
+-
+-static void vc4_cursor_plane_atomic_disable(struct drm_plane *plane,
+- struct drm_plane_state *old_state)
+-{
+- struct vc4_dev *vc4 = to_vc4_dev(plane->dev);
+- u32 packet_state[] = { false, 0, 0, 0 };
+- int ret;
+-
+- DRM_DEBUG_ATOMIC("[PLANE:%d:%s] disabling cursor", plane->base.id, plane->name);
+-
+- ret = rpi_firmware_property(vc4->firmware,
+- RPI_FIRMWARE_SET_CURSOR_STATE,
+- &packet_state,
+- sizeof(packet_state));
+- if (ret || packet_state[0] != 0)
+- DRM_ERROR("Failed to set cursor state: 0x%08x\n", packet_state[0]);
++ state->crtc_y);
++ vc4_plane_set_blank(plane, true);
+ }
+
+ static int vc4_plane_atomic_check(struct drm_plane *plane,
+@@ -301,6 +431,7 @@ static bool vc4_fkms_format_mod_supporte
+ switch (format) {
+ case DRM_FORMAT_XRGB8888:
+ case DRM_FORMAT_ARGB8888:
++ case DRM_FORMAT_RGB565:
+ switch (modifier) {
+ case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
+ case DRM_FORMAT_MOD_LINEAR:
+@@ -309,8 +440,22 @@ static bool vc4_fkms_format_mod_supporte
+ default:
+ return false;
+ }
++ case DRM_FORMAT_NV12:
++ case DRM_FORMAT_NV21:
++ switch (fourcc_mod_broadcom_mod(modifier)) {
++ case DRM_FORMAT_MOD_LINEAR:
++ case DRM_FORMAT_MOD_BROADCOM_SAND128:
++ return true;
++ default:
++ return false;
++ }
++ case DRM_FORMAT_RGB888:
++ case DRM_FORMAT_BGR888:
++ case DRM_FORMAT_YUV422:
++ case DRM_FORMAT_YUV420:
++ case DRM_FORMAT_YVU420:
+ default:
+- return false;
++ return (modifier == DRM_FORMAT_MOD_LINEAR);
+ }
+ }
+
+@@ -325,31 +470,24 @@ static const struct drm_plane_funcs vc4_
+ .format_mod_supported = vc4_fkms_format_mod_supported,
+ };
+
+-static const struct drm_plane_helper_funcs vc4_primary_plane_helper_funcs = {
+- .prepare_fb = drm_gem_fb_prepare_fb,
+- .cleanup_fb = NULL,
+- .atomic_check = vc4_plane_atomic_check,
+- .atomic_update = vc4_primary_plane_atomic_update,
+- .atomic_disable = vc4_primary_plane_atomic_disable,
+-};
+-
+-static const struct drm_plane_helper_funcs vc4_cursor_plane_helper_funcs = {
++static const struct drm_plane_helper_funcs vc4_plane_helper_funcs = {
+ .prepare_fb = drm_gem_fb_prepare_fb,
+ .cleanup_fb = NULL,
+ .atomic_check = vc4_plane_atomic_check,
+- .atomic_update = vc4_cursor_plane_atomic_update,
+- .atomic_disable = vc4_cursor_plane_atomic_disable,
++ .atomic_update = vc4_plane_atomic_update,
++ .atomic_disable = vc4_plane_atomic_disable,
+ };
+
+ static struct drm_plane *vc4_fkms_plane_init(struct drm_device *dev,
+- enum drm_plane_type type)
++ enum drm_plane_type type,
++ u8 plane_id)
+ {
+- /* Primary and cursor planes only */
+ struct drm_plane *plane = NULL;
+ struct vc4_fkms_plane *vc4_plane;
+- u32 formats[] = {DRM_FORMAT_ARGB8888, DRM_FORMAT_XRGB8888};
++ u32 formats[ARRAY_SIZE(vc_image_formats)];
++ unsigned int default_zpos;
++ u32 num_formats = 0;
+ int ret = 0;
+- bool primary = (type == DRM_PLANE_TYPE_PRIMARY);
+ static const uint64_t modifiers[] = {
+ DRM_FORMAT_MOD_LINEAR,
+ /* VC4_T_TILED should come after linear, because we
+@@ -358,6 +496,7 @@ static struct drm_plane *vc4_fkms_plane_
+ DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
+ DRM_FORMAT_MOD_INVALID,
+ };
++ int i;
+
+ vc4_plane = devm_kzalloc(dev->dev, sizeof(*vc4_plane),
+ GFP_KERNEL);
+@@ -366,19 +505,48 @@ static struct drm_plane *vc4_fkms_plane_
+ goto fail;
+ }
+
++ for (i = 0; i < ARRAY_SIZE(vc_image_formats); i++)
++ formats[num_formats++] = vc_image_formats[i].drm;
++
+ plane = &vc4_plane->base;
+ ret = drm_universal_plane_init(dev, plane, 0xff,
+ &vc4_plane_funcs,
+- formats, primary ? 2 : 1, modifiers,
+- type, primary ? "primary" : "cursor");
++ formats, num_formats, modifiers,
++ type, NULL);
+
+- if (type == DRM_PLANE_TYPE_PRIMARY)
+- drm_plane_helper_add(plane, &vc4_primary_plane_helper_funcs);
+- else
+- drm_plane_helper_add(plane, &vc4_cursor_plane_helper_funcs);
++ drm_plane_helper_add(plane, &vc4_plane_helper_funcs);
+
+ drm_plane_create_alpha_property(plane);
+
++ /*
++ * Default frame buffer setup is with FB on -127, and raspistill etc
++ * tend to drop overlays on layer 2. Cursor plane was on layer +127.
++ *
++ * For F-KMS the mailbox call allows for a s8.
++ * Remap zpos 0 to -127 for the background layer, but leave all the
++ * other layers as requested by KMS.
++ */
++ switch (type) {
++ case DRM_PLANE_TYPE_PRIMARY:
++ default_zpos = 0;
++ break;
++ case DRM_PLANE_TYPE_OVERLAY:
++ default_zpos = 1;
++ break;
++ case DRM_PLANE_TYPE_CURSOR:
++ default_zpos = 2;
++ break;
++ }
++ drm_plane_create_zpos_property(plane, default_zpos, 0, 127);
++
++ /* Prepare the static elements of the mailbox structure */
++ vc4_plane->mb.tag.tag = RPI_FIRMWARE_SET_PLANE;
++ vc4_plane->mb.tag.buf_size = sizeof(struct set_plane);
++ vc4_plane->mb.tag.req_resp_size = 0;
++ vc4_plane->mb.plane.display = 0;
++ vc4_plane->mb.plane.plane_id = plane_id;
++ vc4_plane->mb.plane.layer = default_zpos ? default_zpos : -127;
++
+ return plane;
+ fail:
+ if (plane)
+@@ -400,19 +568,23 @@ static void vc4_crtc_disable(struct drm_
+ * whether anything scans out at all, but the firmware doesn't
+ * give us a CRTC-level control for that.
+ */
+- vc4_cursor_plane_atomic_disable(crtc->cursor, crtc->cursor->state);
+- vc4_plane_set_primary_blank(crtc->primary, true);
++
++ vc4_plane_atomic_disable(crtc->cursor, crtc->cursor->state);
++ vc4_plane_atomic_disable(crtc->primary, crtc->primary->state);
++
++ /* FIXME: Disable overlay planes */
+ }
+
+ static void vc4_crtc_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state)
+ {
+ /* Unblank the planes (if they're supposed to be displayed). */
++
+ if (crtc->primary->state->fb)
+- vc4_plane_set_primary_blank(crtc->primary, false);
+- if (crtc->cursor->state->fb) {
+- vc4_cursor_plane_atomic_update(crtc->cursor,
+- crtc->cursor->state);
+- }
++ vc4_plane_set_blank(crtc->primary, false);
++ if (crtc->cursor->state->fb)
++ vc4_plane_set_blank(crtc->cursor, crtc->cursor->state);
++
++ /* FIXME: Enable overlay planes */
+ }
+
+ static int vc4_crtc_atomic_check(struct drm_crtc *crtc,
+@@ -672,8 +844,10 @@ static int vc4_fkms_bind(struct device *
+ struct vc4_crtc *vc4_crtc;
+ struct vc4_fkms_encoder *vc4_encoder;
+ struct drm_crtc *crtc;
+- struct drm_plane *primary_plane, *cursor_plane, *destroy_plane, *temp;
++ struct drm_plane *primary_plane, *overlay_plane, *cursor_plane;
++ struct drm_plane *destroy_plane, *temp;
+ struct device_node *firmware_node;
++ u32 blank = 1;
+ int ret;
+
+ vc4->firmware_kms = true;
+@@ -702,20 +876,26 @@ static int vc4_fkms_bind(struct device *
+ if (IS_ERR(vc4_crtc->regs))
+ return PTR_ERR(vc4_crtc->regs);
+
+- /* For now, we create just the primary and the legacy cursor
+- * planes. We should be able to stack more planes on easily,
+- * but to do that we would need to compute the bandwidth
+- * requirement of the plane configuration, and reject ones
+- * that will take too much.
+- */
+- primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY);
++ /* Blank the firmware provided framebuffer */
++ rpi_firmware_property(vc4->firmware,
++ RPI_FIRMWARE_FRAMEBUFFER_BLANK,
++ &blank, sizeof(blank));
++
++ primary_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_PRIMARY, 0);
+ if (IS_ERR(primary_plane)) {
+ dev_err(dev, "failed to construct primary plane\n");
+ ret = PTR_ERR(primary_plane);
+ goto err;
+ }
+
+- cursor_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_CURSOR);
++ overlay_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_OVERLAY, 1);
++ if (IS_ERR(overlay_plane)) {
++ dev_err(dev, "failed to construct overlay plane\n");
++ ret = PTR_ERR(overlay_plane);
++ goto err;
++ }
++
++ cursor_plane = vc4_fkms_plane_init(drm, DRM_PLANE_TYPE_CURSOR, 2);
+ if (IS_ERR(cursor_plane)) {
+ dev_err(dev, "failed to construct cursor plane\n");
+ ret = PTR_ERR(cursor_plane);
+--- a/drivers/gpu/drm/vc4/vc4_kms.c
++++ b/drivers/gpu/drm/vc4/vc4_kms.c
+@@ -435,6 +435,7 @@ int vc4_kms_load(struct drm_device *dev)
+ dev->mode_config.preferred_depth = 24;
+ dev->mode_config.async_page_flip = true;
+ dev->mode_config.allow_fb_modifiers = true;
++ dev->mode_config.normalize_zpos = true;
+
+ drm_modeset_lock_init(&vc4->ctm_state_lock);
+
+--- /dev/null
++++ b/drivers/gpu/drm/vc4/vc_image_types.h
+@@ -0,0 +1,143 @@
++
++/*
++ * Copyright (c) 2012, Broadcom Europe Ltd
++ *
++ * Values taken from vc_image_types.h released by Broadcom at
++ * https://github.com/raspberrypi/userland/blob/master/interface/vctypes/vc_image_types.h
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++enum {
++ VC_IMAGE_MIN = 0, //bounds for error checking
++
++ VC_IMAGE_RGB565 = 1,
++ VC_IMAGE_1BPP,
++ VC_IMAGE_YUV420,
++ VC_IMAGE_48BPP,
++ VC_IMAGE_RGB888,
++ VC_IMAGE_8BPP,
++ /* 4bpp palettised image */
++ VC_IMAGE_4BPP,
++ /* A separated format of 16 colour/light shorts followed by 16 z
++ * values
++ */
++ VC_IMAGE_3D32,
++ /* 16 colours followed by 16 z values */
++ VC_IMAGE_3D32B,
++ /* A separated format of 16 material/colour/light shorts followed by
++ * 16 z values
++ */
++ VC_IMAGE_3D32MAT,
++ /* 32 bit format containing 18 bits of 6.6.6 RGB, 9 bits per short */
++ VC_IMAGE_RGB2X9,
++ /* 32-bit format holding 18 bits of 6.6.6 RGB */
++ VC_IMAGE_RGB666,
++ /* 4bpp palettised image with embedded palette */
++ VC_IMAGE_PAL4_OBSOLETE,
++ /* 8bpp palettised image with embedded palette */
++ VC_IMAGE_PAL8_OBSOLETE,
++ /* RGB888 with an alpha byte after each pixel */
++ VC_IMAGE_RGBA32,
++ /* a line of Y (32-byte padded), a line of U (16-byte padded), and a
++ * line of V (16-byte padded)
++ */
++ VC_IMAGE_YUV422,
++ /* RGB565 with a transparent patch */
++ VC_IMAGE_RGBA565,
++ /* Compressed (4444) version of RGBA32 */
++ VC_IMAGE_RGBA16,
++ /* VCIII codec format */
++ VC_IMAGE_YUV_UV,
++ /* VCIII T-format RGBA8888 */
++ VC_IMAGE_TF_RGBA32,
++ /* VCIII T-format RGBx8888 */
++ VC_IMAGE_TF_RGBX32,
++ /* VCIII T-format float */
++ VC_IMAGE_TF_FLOAT,
++ /* VCIII T-format RGBA4444 */
++ VC_IMAGE_TF_RGBA16,
++ /* VCIII T-format RGB5551 */
++ VC_IMAGE_TF_RGBA5551,
++ /* VCIII T-format RGB565 */
++ VC_IMAGE_TF_RGB565,
++ /* VCIII T-format 8-bit luma and 8-bit alpha */
++ VC_IMAGE_TF_YA88,
++ /* VCIII T-format 8 bit generic sample */
++ VC_IMAGE_TF_BYTE,
++ /* VCIII T-format 8-bit palette */
++ VC_IMAGE_TF_PAL8,
++ /* VCIII T-format 4-bit palette */
++ VC_IMAGE_TF_PAL4,
++ /* VCIII T-format Ericsson Texture Compressed */
++ VC_IMAGE_TF_ETC1,
++ /* RGB888 with R & B swapped */
++ VC_IMAGE_BGR888,
++ /* RGB888 with R & B swapped, but with no pitch, i.e. no padding after
++ * each row of pixels
++ */
++ VC_IMAGE_BGR888_NP,
++ /* Bayer image, extra defines which variant is being used */
++ VC_IMAGE_BAYER,
++ /* General wrapper for codec images e.g. JPEG from camera */
++ VC_IMAGE_CODEC,
++ /* VCIII codec format */
++ VC_IMAGE_YUV_UV32,
++ /* VCIII T-format 8-bit luma */
++ VC_IMAGE_TF_Y8,
++ /* VCIII T-format 8-bit alpha */
++ VC_IMAGE_TF_A8,
++ /* VCIII T-format 16-bit generic sample */
++ VC_IMAGE_TF_SHORT,
++ /* VCIII T-format 1bpp black/white */
++ VC_IMAGE_TF_1BPP,
++ VC_IMAGE_OPENGL,
++ /* VCIII-B0 HVS YUV 4:4:4 interleaved samples */
++ VC_IMAGE_YUV444I,
++ /* Y, U, & V planes separately (VC_IMAGE_YUV422 has them interleaved on
++ * a per line basis)
++ */
++ VC_IMAGE_YUV422PLANAR,
++ /* 32bpp with 8bit alpha at MS byte, with R, G, B (LS byte) */
++ VC_IMAGE_ARGB8888,
++ /* 32bpp with 8bit unused at MS byte, with R, G, B (LS byte) */
++ VC_IMAGE_XRGB8888,
++
++ /* interleaved 8 bit samples of Y, U, Y, V (4 flavours) */
++ VC_IMAGE_YUV422YUYV,
++ VC_IMAGE_YUV422YVYU,
++ VC_IMAGE_YUV422UYVY,
++ VC_IMAGE_YUV422VYUY,
++
++ /* 32bpp like RGBA32 but with unused alpha */
++ VC_IMAGE_RGBX32,
++ /* 32bpp, corresponding to RGBA with unused alpha */
++ VC_IMAGE_RGBX8888,
++ /* 32bpp, corresponding to BGRA with unused alpha */
++ VC_IMAGE_BGRX8888,
++
++ /* Y as a plane, then UV byte interleaved in plane with with same pitch,
++ * half height
++ */
++ VC_IMAGE_YUV420SP,
++
++ /* Y, U, & V planes separately 4:4:4 */
++ VC_IMAGE_YUV444PLANAR,
++
++ /* T-format 8-bit U - same as TF_Y8 buf from U plane */
++ VC_IMAGE_TF_U8,
++ /* T-format 8-bit U - same as TF_Y8 buf from V plane */
++ VC_IMAGE_TF_V8,
++
++ /* YUV4:2:0 planar, 16bit values */
++ VC_IMAGE_YUV420_16,
++ /* YUV4:2:0 codec format, 16bit values */
++ VC_IMAGE_YUV_UV_16,
++ /* YUV4:2:0 with U,V in side-by-side format */
++ VC_IMAGE_YUV420_S,
++
++ VC_IMAGE_MAX, /* bounds for error checking */
++ VC_IMAGE_FORCE_ENUM_16BIT = 0xffff,
++};
+--- a/include/soc/bcm2835/raspberrypi-firmware.h
++++ b/include/soc/bcm2835/raspberrypi-firmware.h
+@@ -148,6 +148,8 @@ enum rpi_firmware_property_tag {
+
+ RPI_FIRMWARE_VCHIQ_INIT = 0x00048010,
+
++ RPI_FIRMWARE_SET_PLANE = 0x00048015,
++
+ RPI_FIRMWARE_GET_COMMAND_LINE = 0x00050001,
+ RPI_FIRMWARE_GET_DMA_CHANNELS = 0x00060001,
+ };
projects / openwrt / staging / dedeckeh.git / blobdiff